The bag filter pulse valve is the core component of the dust cleaning system, and its failure directly affects the dust removal efficiency and the stability of equipment operation.
Common manifestations and cause analysis of pulse valve faults
1. Pulse valve does not work
-Reason: It may be due to power failure, malfunction of the dust cleaning controller, burnt electromagnetic coil, debris or air leakage inside the pulse valve, low compressed air pressure, etc.
-Solution: Restore power supply, repair or replace the dust cleaning controller; Clean the debris inside the pulse valve; Check and replace damaged electromagnetic coils; Ensure that the compressed air pressure is normal.
2. Pulse valve leakage
-Reason: Damaged diaphragm, aging or improper installation of seals, excessive oil or moisture in compressed air pipelines.
-Solution: Replace the diaphragm or seal; Check and clean the pneumatic system; Install filters to remove oil and water.
3. The pulse valve has weak action or weak blowing
-Reason: Insufficient compressed air pressure, clogged throttle hole, malfunction of solenoid valve or pneumatic system.
-Solution: Check and adjust the compressed air pressure; Clean the throttle hole; Repair or replace the solenoid valve.
4. Pulse valve frequently gets stuck or vibrates
-Reason: The lifespan of the solenoid valve coil has expired, the spring is aging, or the solenoid valve is not installed properly.
-Solution: Replace the solenoid valve coil; Check and replace the spring; Reinstall the solenoid valve to ensure its correct installation.
Suggestions for maintenance and upkeep of pulse valves
1. Regular inspection and maintenance
-Check the sealing of the pulse valve, clean up internal impurities and moisture in a timely manner, and replace the diaphragm if necessary.
-Regularly inspect the cylinder and flange surface to ensure no air leakage, and replace the sealing ring in a timely manner when it ages.
-Check the filters and air coolers of the compressed air system to ensure that the air source is free of oil and water.
2. Debugging and optimization of pulse valve
-During installation and debugging, ensure that the coil voltage of the solenoid valve matches the control signal to avoid faults caused by voltage attenuation.
-Adjust the pulse width and frequency to ensure the best dust cleaning effect and extend the lifespan of the pulse valve.
3. Maintenance in special environments
-In harsh environments such as high humidity or high dust concentration, maintenance should be strengthened, and pulse valves and pneumatic systems should be regularly cleaned to prevent rust accumulation and blockage.
-Using shock absorbers and adjustable DC voltage regulators to enhance the reliability and service life of pulse valves.
Common problems and countermeasures
1. The pulse valve cannot be opened
-Phenomenon: The pilot part has no action and the valve cannot be opened.
-Reason: Insufficient control signal voltage or damaged solenoid valve coil.
-Solution: Check and adjust the control signal voltage; Replace the coil or solenoid valve.
2. The pulse valve cannot be closed
-Phenomenon: The valve continues to blow and cannot be closed.
-Reason: Damaged diaphragm or aging seal.
-Solution: Replace the diaphragm or seal to ensure good sealing performance.
3. Pulse valve leakage
-Phenomenon: Compressed air leaks from the pulse valve, resulting in a decrease in dust cleaning efficiency.
-Reason: Aging of seals, damaged membranes, or improper installation.
-Solution: Replace the seal or diaphragm, check and adjust the installation position.
Summary
The troubleshooting and maintenance of bag filter pulse valve require comprehensive consideration of equipment operating environment, operating conditions, and maintenance frequency. By regular inspection, timely cleaning, and optimized debugging, the service life of the pulse valve can be effectively extended, and the operating efficiency and dust cleaning effect of the equipment can be improved. For complex faults, it is recommended to contact professional maintenance personnel for handling to ensure safety and efficiency.
https://www.cnsbfec.com/Full-Guide-to-Troubleshooting-and-Maintenance-of-Bag-Filter-Pulse-Valve.html
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Shanghai Bag Filtration Equipment Co., Ltd.
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